giscanner/msvccompiler.py: Fix exception handling

Fix the syntax where we handle the exception during preprocessing, so that
we won't trigger a NameError when preprocessing fails, and so the error
would become clearer to people.

Reported by Cosimo Lupo.

https://bugzilla.gnome.org/show_bug.cgi?id=757126

1 files changed, 1 insertions, 1 deletions

diff --git a/giscanner/msvccompiler.py b/giscanner/msvccompiler.py
index d5785775..86049dad 100644
--- a/giscanner/msvccompiler.py
+++ b/giscanner/msvccompiler.py
@@ -80,7 +80,7 @@ class MSVCCompiler(distutils.msvccompiler.MSVCCompiler):
         if self.force or output_file is None or newer(source, output_file):
             try:
                 self.spawn(cpp_args)
-            except (DistutilsExecError, msg):
+            except DistutilsExecError as msg:
                 print(msg)
                 raise CompileError